On the diversity of Poincaré mappings for cubic equations with variable coefficients

Functional Analysis and Its Applications - Tập 33 - Trang 310-312 - 1999
A. A. Panov

Tài liệu tham khảo

V. A. Pliss, Dokl. akad. Nauk SSSR,127, No. 5, 965–968 (1959). A. L. Neto, Invent. Math.,59, No. 2, 67–76 (1980).